The zebra danio (Danio rerio) is a peaceful fish that grows to about 2 inches and spends its time near the surface. Keep at least 6 together, in a tank of 10 gallons or more, at 65–77°F and pH 6.5–7.5.
10 galsmallest tank
2″adult size
65–77°Ftemperature
6.5–7.5pH
6+group size
Peacefultemperament
Good tankmates
Avoid
- ✕Paradise fish: Paradise fish is aggressive and best kept alone.
- ✕Angelfish: Angelfish grows big enough to eat Zebra danio.
- ✕German blue ram: Zebra danio and German blue ram need different temperatures (65–77°F vs 78–85°F).
- ✕Convict cichlid: Convict cichlid is aggressive and best kept alone.
- ✕Oscar: Oscar is aggressive and best kept alone.
- ✕Pea puffer: Pea puffer is aggressive and best kept alone.
From TankCoach's own species data: common hobby guidance for adults, rounded. Individual fish vary. Not veterinary advice.